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Characteristics of Life
GRACE
ESSENTIAL QUESTION
What are the
characteristics
of life for all
living things?
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VOCABULARY
Characteristic
Biology
Organism
Reproduction
Photosynthesis
Metabolism
Heterotroph
Autotroph
Nourishment
Unicellular
Multicellular
Adjustment
Growth
Development
Cell
Organism
Tissue
Organ
Homeostasis
Adaptation
BIOLOGY =

STUDY OF
LIFE OR
LIVING
ORGANISMS.
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A BIOLOGIST IS…
A person that studies,
 Plants=botanist
 Animals=zoologist
 Anatomy &Physiology
=Physiologist
All life follows an organized
pattern.
From Smallest to largest.
Atoms
 Molecules
 Organelles
 Cells
 Tissues
 Organ
 Organ System
 Organism

Memory Pneumonic:
All my odd cousins tried opening
orange-striped oranges.
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Levels of Structural Organization
Figure 1.1
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
Slide 1.3
All Living organisms display
GRACE
G= GROWTH &
DEVELOPMENT
 R=REPRODUCTION
 A=ADAPTATION and
ADJUSTMENT
 C=CELLS
 E=ENERGY
*these letters represent the 5
characteristics of life

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GROWTH & DEVELOPMENT

GROWTH=CHANGE IN SIZE

Living things become larger and more
complicated as they grow.

Example: A baby grows in size
GROWTH & DEVELOPMENT
DEVELOPMENT =CHANGE IN FORM

EXAMPLE: A CATERPILLAR
BECOMES A BUTTERFLY
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REPRODUCTION

All living things produce young.
EXAMPLE: Humans make
babies, cats produce kittens and
pigeons lay eggs. Plants also
reproduce by making seeds.
REPRODUCTION (cont)
Reproduction may be asexual or sexual
 Sexual reproduction: Two organisms
combine genetic information; the new
organism will have some characteristics
from the mother, and some from father. It
may look like either of them, or it may not.
 Asexual reproduction: One organism
splits into two organisms in order to create
another of the same species; the new
organism is an exact copy of the first.
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What do you think?
Is there a benefit to
sexual reproduction over
asexual reproduction?
Explain.
ADAPTATION/ADJUSTMENT
TO ENVIRONMENT


Adaptation: A TRAIT RESULTING
FROM EVOLUTION THAT ALLOWS
A SPECIES THE ABILITY TO
SURVIVE BETTER. Evolution is the
process by which a species changes
over time.
Adjustment:
INDIVIDUALRESPONSE TO
STIMULUS (homeostasis):
 TEMP


AIR
PREDATORS
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Adaptation Example Video
CELLS

ALL LIVING THINGS ARE
COMPOSED OF ONE OR MORE
CELLS

A CELL IS THE SMALLEST UNIT OF A
LIVING ORGANISM.
ONE CELL=UNICELLULAR
MANY CELLS= MULTICELLULAR


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ENERGY
All living things require energy and
food.
 Energy is THE ABILITY TO DO
WORK.

METABOLISM, DIGESTION, ECT.
Heterotrophs (animals and humans) must
ingest food for this purpose.
Hetero= different
troph = nourishment
Autotrophs (plants) make their own food
auto= self
troph =nourishment
Autotrophs (plants) use energy
from the sun for photosynthesis,
to make their own ‘food’
(glucose).
Photosynthesis
Photo=light synthesis= to make
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All living things must show
G
R
A
C
E

Homework
 Re-write
your notes
into 20 Questions
and Answers.
 The format uses
what, why, when,
where, or how
questions with a
correct response.
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Let’s Practice
The notes read:
A biologist is a person who
studies plants and animals.
Your Q/A re-write should read….
VOCABULARY
Characteristic
Biology
Organism
Reproduction
Photosynthesis
Metabolism
Heterotroph
Autotroph
Nourishment
Unicellular
Multicellular
Adjustment
Growth
Development
Cell
Organism
Tissue
Organ
Homeostasis
Adaptation
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Word Squares!!!


Each student will randomly draw
a vocabulary word
Students will research the word
and create a word square poster
with
The Word
 The word stem/root definition (if any)
 The textbook definition and their own
definition
 A symbol or picture
 A sentence that uses the word

Quad 1
Quad 2
Quad 3
Quad 4
Examples
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